W210 E320CDI Headlights/Fog Lights and ABS/ESP/BAS

[georgec180]

I'm having a problem where the driver side headlight is intermittent. Sometimes it will work, other times it wont.

When I bought the car a few weeks ago the front fog lights wouldn't work, and it states on the service history from a few years ago 'Front Fog Lights Inoperable'. However I tried them earlier today and for the first time ever they worked! (Prior to this I assumed the wiring had gone which I believe is a common fault on the W210's)

I'm also having problems with the BAS/ESB/ABS light. I've changed the Brake Light Switch and the problem is still there. Sometimes I will get the warning lights and other times it will be fine.

Could the actual light switch itself be at fault here, or are the problems unrelated?
Thanks

 

[renault12ts]

Check the earth point behind the offside headlamp inside the engine bay...a bunch of brown wires. The point can corrode...and lead to all sorts of problems.

 

[Barbanasos]

+1 for the earth point

 

[georgec180]

Still not had any luck with lights. Front fogs havent worked again since and the front parking lights arent working either.

ABS/ESP/BAS came on again last week a couple of times but haven't seen it again since.

Cleaned up the earth point and put a new bolt in it. Still no difference.

Any more ideas?

Thanks again